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267641-97-4

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267641-97-4 Usage

Derivative

pyrazole

Usage

intermediate in the synthesis of pharmaceuticals and agrochemicals

Appearance

white to off-white solid

Solubility

soluble in organic solvents (e.g. dichloromethane, acetone)

Primary function

carbonyl chloride derivative

Hazards

strong irritant to eyes, skin, and respiratory system

Safety precautions

use in well-ventilated area, wear appropriate personal protective equipment.

Check Digit Verification of cas no

The CAS Registry Mumber 267641-97-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,7,6,4 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 267641-97:
(8*2)+(7*6)+(6*7)+(5*6)+(4*4)+(3*1)+(2*9)+(1*7)=174
174 % 10 = 4
So 267641-97-4 is a valid CAS Registry Number.

267641-97-4Relevant articles and documents

Pyrazole analogues of prazosin

Ermondi, Giuseppe,Boschi, Donatella,Di Stilo, Antonella,Tironi, Carla,Gasco, Alberto

, p. 519 - 524 (1998)

A series of analogues of prazosin, in which 1-methyl or 1- phenylpyrazole moieties were substituted for the furan ring, were synthesized and studied for their α1-adrenoceptor antagonist activity. The role of the five member heterocyclic substru

A novel series of potent and selective small molecule inhibitors of the complement component C1s

Subasinghe, Nalin L.,Ali, Farah,Illig, Carl R.,Rudolph, M. Jonathan,Klein, Scott,Khalil, Ehab,Soll, Richard M.,Bone, Roger F.,Spurlino, John C.,DesJarlais, Renee L.,Crysler, Carl S.,Cummings, Maxwell D.,Morris Jr., Philip E.,Kilpatrick, John M.,Babu, Y. Sudhakara

, p. 3043 - 3047 (2007/10/03)

Activation of the classical pathway of complement has been implicated in disease states such as hereditary angioedema, ischemia-reperfusion injury and acute transplant rejection. The trypsin-like serine protease C1s represents a pivotal upstream point of

The Direct Carboxylation of Pyrazoles

Chiriac, C. I.

, p. 753 - 755 (2007/10/02)

Various pyrazole-4-carboxylic acids 4 were obtained by a direct carboxylation reaction of pyrazoles 1 with excess, oxalyl chloride.

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